Getting a new iPhone 7 is always an exciting time. Then the realization sets in that you have to figure out how to get information from your old phone to the new one. Here is an easy way to transfer data from Samsung Galaxy Note 3 to iPhone 7 / 7 Plus, all data like contacts, SMS, photos, music, etc.
http://www.youtube.com/watch?v=xiR-bqcCqTY [youtube.com]
Also works with more Android phones:
Samsung Galaxy S7, S6, S5, Note5, Note4;
LG V20, V10, G5, G4, G3, G Flex 2;
HTC 10, HTC One M9, M8, A9;
Moto G, Moto Z, Moto X Pure Edition;
Sony Xperia XZ, Z5, Z3 and more.

Samsung Transfer [samsung-messages-backup.com] is such a good tool can help us transfer photos, videos, messages, call log, calendar and almost all data in our device. It supports almost a full range of smartphone including Android, iOS, Symbian, Sony and many other devices. What's more it can be used to backup & restore your data. Whatever kind of functions it has can guarantee zero data loss and 100% secure.

Yes, after switching from Samsung to iPhone, we need to transfer data between them. And contacts and text messages can be transferred by using Gmail. For media data, we can use mobile phone transfer tool [android-mobile-manager.com]. With its help, we can directly transfer data between them from computer via usb cable.